Cog-wheel.



No. 702,747. Patented June 17, I902.

F. SAXON.

' cue WHEEL.

pppp lication filed Feb. 8, 1902 M/VE ro'R' 7 3 1 WITNESSES.

UNITED STATES" i P TENT ()FFICE.

FRANK SIA-XON, on woRT-HiNeToN, MINNESOTA.

coe vl/HEEL.

SPECIFICATION forming part of LettersjPatent 110,702,747, dated June 17, 1902.

Application filed February 8, 1902. Serial No. 93,128. (No model.)

To all whom it may concern:

Be it known that LFRANK SAXON,0f Worthington, in the county ofNobles and State of Minnesota, have invented a certain new and useful Improvementin Cog-Wheels, of which the followin is a specification.

My invention relates'to cog-wheels, and is designed as an improvement over the device shown and described in Letters Patent of the United States granted to me November 29, 1892, Serial No. 487,129.

The object of the invention is to simplify and improve the manner of fitting andsecuring the two members of the wheel together.

A further object is to provide means for.

limiting the relative movement of the members to prevent possible breakage'of the springs, and, further, to provide improved means for supporting and securing the pin ions within the inner member.

The invention consists generally invari ous constructions and" combinations, all as hereinafter desc'ribed,and particularly pointed out in the claims.

In the accompanying drawings, forming part of this specification, Figure 1 is a side elevation of a cog-wheelembodying myin vention, the upper portion thereof being-in section, showing the arrangement of the springs between the two members. -Fig. 2'-is a section on the line x w of Fig. 1. a sectionon the liney y of Fig. 1. I

In the drawings, 2 represents the outer section, having cogs 3, and. tithe inner section fitted within the outer and secured upon or loosely mounted on a shaft. The outer section is provided with an inwardly-extending annular fiange'5, fitting a recess-Gin the in-,

ner section,- which-has an outwardly-extending annular-flange 7 to enter-a recess in the outer section. These flanges and recesses are easily turned out of the, :sections of the wheel and fit together with comparatively little adjustment and attentionto detail, which were found to be necessary in the manufacture of the Wheel described in my former patent. Between the flanges'5 and 7 chambers S are formed, within whichI provide' coilsprings 9between lugs 10 on the outersection and corresponding lugs'll on the inner section. These springs are adapted to yield longitudinally and take up the shock of a 'Fig. 3 is:

mounted upon pins .15, that are removably fitted Within radial holes 16 in the lugs 11 and in a hub of the inner section. The outer section over the lugs 11' is provided with curved slots 17 to receive studs 18 on said lugs, and bolts 19, passing down through said studs and said lugs, secure the pins 15 there- 'in.- The travel of the inner section with respect to the outer is regulated by the length of the slots 17, which prevents undue compression and-possible breakage of the springs. 'I prefer to provide the studs 18 to relieve the bolts as much as possible of the strain when coming in contact with the ends of the slots.

20 represents a shaft whereonthe inner member is loosely mounted, 21a pinion secured on said shaft and engagingthe pinions 13, and22 a pinion corresponding to the pinion ,21, but loosely mountedlon the shaft on the opposite side of the wheel.' This pinion .22, also engages the pinions13. r

In operation when the cog-wheel is revolved motion is transmitted through the pinions'13 to 'the} pinions 21 and22 upon the shaft. When the device is applied to a traction-engine, the pinions'13 and22 will be revolved in making a turn. to compensate for the difference in speed; between the roadwheels with which the pinion22 engages and the shaft20. I f

The advantages of this construction over that shown in my former patent are, first, the improved means for fitting and securing the members of the wheel together; second, the manner of supporting the pinions 13, which permits their convenient insertion or removal, and, third, the devices'for limiting the relative movement of the two members to prevent undue compression-of and strain on the cushion-springs. I

I claim as my invention 1. A compensating cog-wheel, comprising .an outer section having a series of teeth and an annular inwardly-projecting flange on one side, an inner section fitting within said outer section and having a corresponding ontwardly-projecting flange on the opposite side from said first-named flange between which flanges chambers are formed, inwardly and outwardly projecting lugs provided. respectively on said sections, and cushion-springs provided between the lugs of each section and the adjacent lugs of the other section.

2. A compensating cog-wheel, comprising an outer section having a series of teeth and a series of inwardly-projecting lugs, an inner section fitting within said outer section and having a series of outwardly-projecting lugs alternating with those of the outer section, a series of cushion-springs provided between the lugs of one section and the adjacent lugs of the other section, beveled pinions provided within recesses in said inner section, and radial pins passing through the lugs and hub of said inner section and whereon said pinions are mounted.

3. A compensating cog-wheel, comprising an outer section having a series of teeth and a series of inwardly-projecting lugs, an inner section arranged within said outer section and having a series of lugs alternating tary movement of thesame, and studs pro vided on the lugs of the inner section and adapted to travel within slots in the face of the outer section and regulate the travel of said sections and the compression of said springs.

4. A compensating cog-wheel, comprising an outer section having a series of teeth and a series of inwardly-projecting lugs, an innor section fitting Within said outer section and having a series of lugs alternating with the lugs of the outer section, cushion-springs provided between the lugs of said sections and adapted to be compressed by the relative rotary movement of the same, pinions provided within recesses in said inner section, radial pins passing through the lugs and hub of said inner section and whereon said pinions are mounted, and bolts adapted to travel in slots provided in said outer section and passing through the lugs and pins of said inner section and whereby the relative movement of said sections and the compression of said springs is regulated.

In witness whereof I have hereunto set my hand this 30th day of January, 1902.

FRANK SAXON.

In presence of- PETER THOMPSON, S. KINDLUND. 

